# DuckGPS vs Speedometer One

The clearest difference is price: Speedometer One at Free against DuckGPS's $4.99. DuckGPS's advantage is in-app purchases (none vs 1) and update cadence (every 3 months vs every 5 months). On ads, device support and iOS requirement there is nothing between them.

Speedometer One is free to download; DuckGPS costs $4.99 up front. Speedometer One sells 1 one-off in-app purchase. DuckGPS asks for nothing beyond the download.

DuckGPS ships an update every 3 months, Speedometer One every 5 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | DuckGPS | Speedometer One |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.8 (16 ratings)](https://appshunter.io/ios/app/duckgps-gps-speed-tracker/id1478904971/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Paid | — |
| Size | 27 MB | 55 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [欣明 封](https://appshunter.io/developer/1473431377) | [Sypnapse LLC](https://appshunter.io/developer/1881159577) |

## What reviewers say

### DuckGPS

[App page](https://appshunter.io/ios/app/duckgps-gps-speed-tracker/id1478904971)

This navigation app features a customizable duck avatar that visually represents your speed with a spinning propeller. It offers 360° rotation and a night mode for comfortable viewing. Always prioritize safe driving and obey traffic laws.

**Highlights:** Customizable duck avatar, Realistic propeller speed indicator, 360° free rotation, Dedicated Night Mode, Continuous GPS usage for speed tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Speedometer One

[App page](https://appshunter.io/ios/app/speedometer-one/id6759846345)

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Speedometer One Pro | $2.99 | one-time |


## Frequently asked questions

### Is DuckGPS free?

DuckGPS costs $4.99, with no in-app purchases.

### Is Speedometer One free?

Speedometer One is free to download, with in-app purchases available.

### Do DuckGPS or Speedometer One have ads?

Neither DuckGPS nor Speedometer One shows ads.

### Which is updated more often, DuckGPS or Speedometer One?

DuckGPS ships an update every 3 months, and Speedometer One every 5 months. Most recently, DuckGPS was updated on October 25, 2026 and Speedometer One on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*